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Here are some steps you can follow to remove the Crypto Tab Browser from your Windows Server 2012:
Safe Mode: Boot your computer in Safe Mode. You can do this by pressing the Win+R buttons, type msconfig in the box and press Enter. Choose the Boot tab, and click on Safe Boot check box. Select the type of Safe Mode: Minimal or Network. Press OK and reboot your PC.
Uninstall a Program: In Safe Mode, navigate to Control Panel, then choose Uninstall a program and try to remove "Crypto Tab".
Manual Removal: If Crypto Tab Browser is not listed in the programs to uninstall, you might have to manually remove it. This involves detecting the unwanted program and deleting it from your computer.
Removal Tools: If manual removal is not successful, you can use removal tools like Norton Antivirus from Symantec or SpyHunter 5 from EnigmaSoft Limited. These tools can detect and remove all files, folders, and registry keys of CryptoTab Browser and several millions of other adware, hijackers, toolbars.
How to remove CryptoTab - BugsFighter
Best Regards,
Wesley Li